Abstract
AbstractThe effective crosslink densities were determined for four silica‐filled silicone rubber vulcanizates which represent different degrees of crosslinking. The determinations were made from compression‐deflection measurements of rubber specimens at an equilibrium swelling condition. Nine solvents representing a wide range of dilatant strengths were investigated at four equilibrium temperatures (8, 23, 41, and 60°C.) for their effect on the crosslinking determinations. Specimen shape effects were also investigated. Explicit equations of state were derived empirically and were found to be similar to the well‐known Mooney‐Rivlin equation in which two independent parameters are required for the definition of a dilated rubber network.
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